Home / 27,308.68-40,987.44-13,990.75

Finding the Fourth Proportional to 27,308.68, 40,987.44 and 13,990.75

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Solution

The fourth proportional to 27,308.68, 40,987.44 and 13,990.75 is: 20,998.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,308.68 : 40,987.44 = 13,990.75 : x
  2. Step 2: Convert to fraction form
    27,308.68/40,987.44 = 13,990.75/x
  3. Step 3: Cross multiply
    27,308.68x = 40,987.44 × 13,990.75
  4. Step 4: Simplify right side
    27,308.68x = 573,444,956.23
  5. Step 5: Solve for x
    x = 573,444,956.23/27,308.68
  6. Step 6: Final answer
    x = 20,998.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.